混合所有制改革是否有助于缓解人力资本配置扭曲

将人力资本在所有制企业间的配置扭曲（错配）理解为技术配置扭曲和规模配置扭曲两个方面，基于1998—2013年中国工业企业数据库的相关数据，探讨国有企业混合所有制改革影响人力资本配置扭曲的内生机理，结果表明：混合所有制改革鼓励非国有资本通过参股、控股和并购等方式参与到国有企业的生产决策中，这有助于完善国有企业的公司治理结构和利润分配机制，进一步缓解人力资本的技术配置扭曲和规模配置扭曲程度；相对于非行政垄断行业，行政垄断行业中国有企业混合所有制改革对于人力资本配置扭曲的缓解作用较小。     

A股“垃圾股”退市难的原因及对策分析

退市难一直是A股的难题,退市率极低。由于退市制度设计缺陷、IPO非市场化及监管不到位等原因,致使“垃圾股”的“壳”价值高,上市公司保“壳”冲动高。在当前IPO加速的背景下,科学合理地提高退市率,积极完善退市制度,使A股形成“有进有出”的良性生态环境是亟待解决的问题。     

肯德基快餐店仓储管理现状分析——以佛山市南海区沙龙店为例

在工作和生活节奏日益加快的今天,为了提高工作效率,人们越来越崇尚在外就餐,由此带动了快餐业的快速发展。经营快餐店,仓储管理十分重要。论文对佛山市南海区肯德基沙龙快餐店的仓储管理现状进行了分析,针对仓储管理中存在的问题,提出改进建议,希望能对肯德基连锁快餐店或者其他同类型快餐店的经营有一定的启示。     

Destruction and settlement norms as determinants of conflict: An evolutionary perspective

This paper studies conflict in a simple bargaining framework using an evolutionary game-theoretic approach. Our findings suggest that a player does not always regard the winning probability as an acceptable settlement rule. He accepts a division according to winning probability when the destruction caused to him in conflict is more than a threshold, which in turn depends on cost of conflict to the opponent and the size of the population. Further, our analysis shows that the norms with positive weight to disagreement payoff are effective against conflict, and incentivize peace. Contrary to the findings of extant studies carried out in finite population evolutionary game setting, the settlement possibility set is identical under both ESS and Nash equilibrium in our model with settlement norms.     

Mass media and preferences for redistribution

This paper investigates how mass media potentially act on preferences for redistribution. Our hypothesis is that media contribute to shaping the value system of a person, which affects support for redistribution. A theoretical model is proposed which combines demand- and supply-driven media bias. On the demand side, the model considers two types of individuals: non-partisan, whose values are influenced by the media, and partisan, who have strong opinions not affected by the media. We assume that although partisan individuals prefer unbiased information, they hold beliefs that they like to be confirmed; therefore, they tend to consume media with an ideological position similar to theirs. On the supply side, we focus on interest groups’ pressure on media coverage. Our results suggest that the anti-equality lobby is willing to pay more than the competing lobby. Moreover, we show that media bias is a decreasing function of the advertising revenues and an increasing function of the relative weight of ideology vs pluralism in individuals’ demand for media. Adding a second media outlet reduces the likelihood of media bias but not its extent. Finally, if both lobbies are active, the two outlets’ ideological positions are polarised.     

Euro area sovereign yield spreads as determinants of private sector borrowing costs

We regress long-term private-sector borrowing rates on a money market rate, a term premium and credit risk. As a contribution to the current debate about European safe assets, our interest is in quantifying the impact of euro area sovereign bond spreads on private-sector lending by employing it as a proxy for private-sector credit risk. Panel estimates show significant, albeit rather small long-run effects. Another finding is large cross-country heterogeneity. Using linear country-specific estimates, we find the effect to be significant in only some countries, but the size of the maximum effect in these countries exceeds the average one more than three-fold. Furthermore, for one country, we find an asymmetrical effect with positive spread changes having greater impact on private-sector borrowing costs than negative ones. Substantial heterogeneity of the spillover effect between euro area countries indicates the presence of financial valuation effects based not only on economic fundamentals. This, in turn, implies that spillovers may entail contagion costs. Overall, our results suggest that these costs are considerable in the euro area and will remain so until an effective form of European safe assets is created.     

Are high–frequency traders informed?

Are high–frequency traders (HFTs) informed? To address this question, we examine HFTs' activity in the call auction environment, where speed-related trading is limited and signal processing capacity becomes more relevant. To model the call market, we consider the Kyle (1989) rational expectations framework for strategic trading. The test we propose for detecting informed HFTs in this market assesses potential deviations of the informativeness of HFTs' aggregate (net) demand, from the informativeness of the aggregate demand submitted by the rest of the traders. Data from the Euronext Paris preopening phase indicate that informed HFTs are present in the market just before the opening. Our results provide useful guidance for the assessment of the influence of HFTs’ quotes on price quality, an important issue for market regulators and policy makers.     

Optimizing a portfolio of mean-reverting assets with transaction costs via a feedforward neural network

Optimizing a portfolio of mean-reverting assets under transaction costs and a finite horizon is severely constrained by the curse of high dimensionality. To overcome the exponential barrier, we develop an efficient, scalable algorithm by employing a feedforward neural network. A novel concept is to apply HJB equations as an advanced start for the neural network. Empirical tests with several practical examples, including a portfolio of 48 correlated pair trades over 50 time steps, show the advantages of the approach in a high-dimensional setting. We conjecture that other financial optimization problems are amenable to similar approaches.     

全球视角下生态系统服务付费的国际经验与评价

将生态系统服务付费(PES)工具分为经济类和非经济类两种,根据生态服务生产者和付费者的支付意愿,进一步细分为双方自愿支付、集体自愿支付、强制双方支付、强制集体支付四种具体的PES制度,通过分类介绍PES机制在全球的各种实践案例,归纳PES机制成功推行的共同点,分析PES系统的社会和环境挑战与由此产生的生物多样性风险之间的关系。     

论我国大气污染生态补偿法律机制的完善

大气污染生态补偿法律机制对于促进区域大气污染联合治理、实现大气污染治理法律正义、创新与完善生态补偿法律机制等具有重要意义。我国现有法律法规就大气污染生态补偿进行了原则性规定,特别是山东、陕西、湖北等地方性法规更是对大气污染生态补偿进行了探索性规范,为大气污染生态补偿法律机制完善提供了有益经验。但从总体来看,我国大气污染生态补偿法律机制尚存在缺乏专门法律支撑、生态补偿主体过窄、补偿方式单一、补偿标准不合理、法律责任不完善等问题。为促进生态文明战略与强化大气污染生态补偿的法律保障,我国应以科学理念为指导,采取有效措施推进大气污染生态补偿法律机制完善。